Cnut IV of Denmark

Saint Cnut (Knud) IV of Denmark (1040-) was the King of Denmark from 1080 until his death. Canonized for his support of the Roman Catholic Church, Cnut was a warrior-king who had designs on the throne of England and Scandinavia.

Biography
Cnut was the son of Sweyn II of Denmark and one of his concubines, and in 1080 he succeeded King Harald III of Denmark as king upon his death. Cnut launched military campaigns against rebel Norse in Norway and Sweden, conquering Oslo and Stockholm and adding new lands to Denmark. As a Scandinavian empire-builder, Cnut also had designs on the throne of England across the North Sea, and had the goal of eventually wiping out the Holy Roman Empire.